NDLI: Optimal design for $$p$$ -Cycle-protected elastic optical networks

Content Provider	Springer Nature Link
Author	Wei, Yue Xu, Kai Jiang, Yuling Zhao, Heming Shen, Gangxiang
Copyright Year	2015
Abstract	This paper considers the $$p$$ -Cycle network protection technique in comparison with the ring cover technique for elastic optical networks. We develop Integer Linear Programming models to minimize required protection capacity and used link spectra in the whole network. We consider two spectrum conversion capabilities, i.e., no spectrum conversion and full spectrum conversion, for the $$p$$ -Cycle protection technique. We also apply the bandwidth squeezed restoration technique to obtain the maximum restoration levels for the affected service flows subject to limited frequency-slot capacity in each fiber link. Our studies show that the $$p$$ -Cycle technique shows much lower spare capacity redundancy than the ring cover technique. In addition, it is found that though the spectrum conversion capability can help improve spectrum efficiency for the $$p$$ -Cycle technique, the improvement seems not very significant for the static traffic scenario. It is also found that as the number of candidate cycles used in the design increases, the spare capacity efficiency saturates.
Starting Page	257
Ending Page	268
Page Count	12
File Format	PDF
ISSN	1387974X
Journal	Photonic Network Communications
Volume Number	29
Issue Number	3
e-ISSN	15728188
Language	English
Publisher	Springer US
Publisher Date	2015-03-26
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Elastic optical network $$p$$ -Cycles Ring cover Network protection Spectrum conversion Bandwidth squeezed restoration Computer Communication Networks Electrical Engineering Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Computer Networks and Communications Electrical and Electronic Engineering Hardware and Architecture Software

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